Veterinary surgical instrument



0. STE DEH. VETERINARY sURGIcf -Lm$m APPLICATION FILED MMI 2G IAQQAQUA,

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OTTO STADER, F, OCONOMOXVGC, 'WSGNS VETEBJINARY SURGCAL Ifl'STfEtUllfEliraeefieo.

Epecication o Letters atezet.

pplioation filed lareh 2, l92. Sera Hm State ot ViTiS'COnSim-haminvented certain lnew and useful improvements in YVeterinary SurgicalInstruments, ot which the following is a. description.

This invention relates to veterinary surgical instruments and has t'orits primary object to provide means for transferring the generativesemen from a previously bred female animal and injectingthe same intothe anterior portion of the vagina ot one or more unbred females, bywhich operation the male reproductive germ is so placed that by virtueof its locomotive powers it can gain entrance into the uterus and there'fen tilize the female egg.

The present invention-is designed with a view to procuring thereproduction or' desirable species of cattle or other animals andincreasing the offspring from a selected male without necessitatingcopulation with a large number of Jemales which would impair thevitality ot the male animal.,

For the above purpose, in one construe` tion I provide a sight tube withilluminating means at one end so that the operation may be readilyobserved by applying the eye to the opposite end'oiC said tube. vacuumcylinder and piston is carried by the latter end of the tube and alongitudinal tube is connected at one of its ends to said cylinder andat its other end communicates with the operative end of the sight tubeand collects the semen from the vagina of the bred temale animal. Thecylinder and tube connected therewith are surrounded by a jacket Withinwhich a vacuum may be maintained to prevent devitalization of the semena reduction of its temperature. The position of the instrument fortransference ot the semen to the unbred female is reversed and the endof the tube is inserted into the vagina directly over the cervix. rEhenby operating the piston thel semen or part ot it can be ejected in closeproximity to the cervix.

With the above and other objects in view, the invention consists in theimproved form.I construction and relative arrangement of the severalparts of the improved instrument as will be hereinaftei'inore fullydescribed, 'illustrated in the accompanying throughout ,head having; acen* Alight bulb 8 at the opposite side drawing and subsequentlyincr/rpc? t the subjoined claims.

in the drewinq whe. ed one practical Yembed tion and Vin whichcharacters designate co the several i Fig. l is a side elevationalinstrument Fig. 2 a longitudinal sectional View the same:

is a transrersc the line 3MB in Fic. ein' Li is en end elevation.

Heren-ing in detail to the sight tube 57 et sheet metal, cylindrical,though it may be i desired cross sectional iorni. this tube is obliquelycut as side of the tube 5i a longxitudin ing tube '7` of relatively 5all c suitably secured tc the wall tin-reo I tube 7 provides a housing;1for the reed wi or an electric ligat bulb which in the end ci' the tube7^ which .le adjacent to oblique end tl ci rThe opposite or' the tcylinder havingr a conci l0. piston l1 'r inder 9 and is attua-ted byneen" i553 12. The outer end o li,

diameter than the air may -i pass rein the i cylinder in the outweipiston ll. An annu p disposed against the outer sir. inder head threadedin i the endL cap carries f 'stuw L the piston red l2 mov vided witlr anair cuei. f wall oi the cylinder il a an inwardly opening posed.

To the inner end et' tudinaliy extending ti A one of vits ends? theeener en.` 'r s communicatinnW with the interior 5 adjacent to its end 6and in advance o 5. A jacket 2l surrounds the tube it@ forms acoi'itinuation of the-j "et space e l 'rounding the cylinder 9. Thisits" 4ment will be 'fully understood.

forward end is closure 22.

Prior to using the instrument the piston is operated and during theinward movement thereof the nger is held-over the opening 18 s0 that airWill be drawn from the jacket into the cylinder 9. In the outward movement of the piston air is expelled from the cylinder through the opening18; In this manner a vacuum is finally produced within the acket.

The oblique end 6 of the tube 5, held in the position shown in F ig. l,of the drawing, is then engaged with the posterior sexual organs of thebred] female animal and the interior of this end of the tube illuminatedbygneans of the lamp bulb 8. By placing the eye at the opposite end of`the tube the collection of the semen may be observed. Upon operation o-fthe piston .ll the semen, or a. part thereof is drawn from the vaginainto the tube 20. A art of the semen may collect in the forward, end ofthe cylinder 9. By creating a vacuum in the jacket, as above explainedthe semen contained in the tube 20 and cylinder 9 is maintainedsubstantially at its original temperature. Preferably in transferringthe instrument the jacket walls are submerged in hot water or otherwiseprovided with an air tight heatedl so that the temperature of the semenwill not be materially reduced.

The semen is discharged into the anterior vagina of the unbred femaleanimal by reversing the position of the. instrument in the hand andinserting the point of the tube 5 into the vagina directly over thecervix. The curved outlet end ofthe tube 20 is then at the upper side ofthe instrument and upon operation of the piston 11 the semen flows underpressure and, by gravity through said tube andis deposited in thevagina. The reproductive germ of the male by its locomotive aowers willthen pass into the uterus and fertilize the female egg after which thedevelopment of the foetus and the enbryo takes place in the natural wayin the womb. In due course birth occurs and a calf is delivered.

From the foregoing description considered in connection with theaccompanying drawing the construction, manner of" use, and severaladvantages of the improved instru- By means of the present invention theexperienced veterinary surgeon may readily carry out artificialimpregnation and produce a condition of pregnancy in the female animalwithout that female being bred by a-male. Thus -impairing its vitalpowers.

Vhile I have herein disclosed preferred embodiment of the inventionwhich [have found very .satisfactory in practical use, it

will be mainffest that the instrument is Susceptible of manymodifications in the form, proportion and arrangelnent of its severalparts. Therefore, I reserve the privilege of resorting .tof all suchlegitimate changes as may be fan-ly embodied within the' spirit andscope of the appended claims.

l. An Vinstrument lof the character def.

scribed comprising a. sight tube, means carriecl by said tube andcommunicating therewith adjacent one of its ends to receive animalsemen, and additlonal means cari-led by the tube for maintaining thesemen substantially at v.its original temperature.

instrument of the character described comprising avsight tube, means forilluminating the interior of said tube adjacent ione of its ends, andmeans carried by saidti )e and communicating with the'inter-iol' thereofopposite the illmninatinig means` and adapted to receive animal semen.

An instrument of the character described comprising a sight tube, asemen recei ving tube exterior of the sight tube and communicatingtherewith adjacent one of its ends, and a jacket which may be evacuatedsurrounding said tube to maintain the semensubstantially at its originaltempera-A ture. 4 4. An' instrument of the character describedcomprising a sight tube, a semen 'rc ceiving tube exterior of the sighttube an'd communicating therewith al: one of ils ends, a cylindercarried by the sight tube to which thc semen receiving tube isconnected, a jacket surrounding said tube and the cylinder, a valvecontrolling communication between the cylinder and the jacket space, anda piston reciprocatitng in said cylinder and acting to withdraw the airfrom within said jacket to maintain. the semen substantiallyat itsoriginal temperature.

In testimony4 that I claim the' foregoing as my invention, and I havesignedy my name hereunder.

OTTO STAD ER.4

